Early in this thread, in view of the length of time in question, people suggested consulting a lawyer. I think now would be the time to do that.
As has already been said, you may have legal cover if you are a trade union member or maybe from your household insurance, or possibly your bank account. If you don't have cover from any source and you're worried about the cost, there may be solicitors who can offer a free initial consultation, or (I think but I am not certain) the Citizens' Advice may be able to point you in the right direction.
As a CitA volunteer it depends!
We are a small office and have access only to a family law solicitor for free (20 minutes or so) advice. Other bigger and better funded offices may well be able to provide more options.
What we do have, though, is a list of local solicitors and what areas of law they cover. Definitely worth a call to your local office to find out if, and how, they can help